Insulator



Aug. 21,1928.

1,681,378 A. G. STEINMAYER Y I NSULATOR Filed Aug. 29, 1924 r /7 /5kunt@ y /6 /4- Alwin E- Emmdyr# @whiny CII Patented Aug. 21, 1928.

UNITED STATES PATENT erica. t

ALWIN e. STEINMAYER, or MILWAUKEE, WISCONSIN, AssICNOR To LINE. MATERIALCOMPANY, OF SOUTH MILWAUKEE, WIsCoNsIN, A CORPORATION on WISCONSIN.

INSIILAI'OR.

Application filed August 29, 1924. Serial No. 734,894.

This invention relates to certain new and useful. improvements ininsulators of that type especially designed for mounting dead ends,although it may be used in numerous other places.

Heretofore, insulators of the type described have had a spool mounted ina carrying bracket which in turn is secured to a support by means of asuitable attaching device, such as a hookvor the like. In installingdevices of this type, `it has been found that the man on the ground'hasbeen somewhat hindered in wrapping.` the wire around the spool due tothe encumbrances offered by the spool mounting.

IVith the above and other objectionable features of the insulators ofthe type described in mind, this invention has as one of its objects theprovision of an insulator wherein one of the links forming the spoolmounting bracket may be disconnected to free one end of the spool tofacilitate the wrapping of the wire therearound.

A further object of this invention resides in the provision of aninsulator of the character described having a spool rotatably mounted ona pin on the ends of which a pair of links are pivotally connected toprovide means for supporting the spool from a suitable attaching hook,one of the links being readily removable to permit the convenientwrapping of a wire about the spool.

It is a still further object of this invention 'to provide an applianceof the character described which is of simple and durable constructionand which will materially facilitate `line work requiring an applianceof this character.

lVith the above and other objects in `view which will appear as thedescription proceeds7 my invention resides in the novel construction,combination and arrangement of parts substantially as hereinafterdescribed and more particularly defined by the appended claim, it beingunderstood that such changes in the precise embodiment of the hereindisclosed invention may be mad-e as come within the scope of the claim.

In the accompanying drawing, I have illustrated one complete` example ofthe physical embodiment of my invention constructed according' to thebest mode I have so far devised for the practical application of theprinciples thereof, and in which:

the attaching hook, one-ofthe links beingv disconnected from the spoolvcarrying boltv or pin, and i ligure 3 is a view, partly in section andpartly in elevation, taken through Figure 1 on the plane of the line 83.

Referring now vmore particularly tothe accompanyingdrawing, in whichlike num-,

crals designate like part-s throughoutYither several views; the numeral5 designates an attaching member having, in the present embodiment, athreaded end 6 provided with a flange or head 7 from the other side ofwhich a pig-tail hook 8 projects. The flange or head 7 is preferablyprovidedv with' apertures or notches' 9 through which a nail or screw(not shown) may be passed, after the threaded end has been screwed homewith the flange orhead 7 engaging the support, `to prevent theaccidental unscrewing thereof. lVhile the attaching member has beenillustrated of the screw type, it will be appreciated that it may be inthe forni of a bracket or any other construction.

The spool orinsulator proper 10 is preferably of cylindrical shapehaving one or more annular grooves or channels 11 in its periphery tofacilitate the connection therewith of a Wire 12'and having a centralbore 13 through which the mounting bolt or pin 14 passes. The bolt orpin 14 has a head 15 on one end and is passed through thebore 13 andthrough the outer ends of a pair of links 16 and 17. The inner ends ofthe links are bent inwardly and then laterally to form a yoke shapedframe adapted to be supported from the attaching member by passing thepig-tail hook through apertures 18 in the inner ends thereof.

The opening 19 of the link 16, through which the Abolt or pin 14 passes,is of substantially key-hole shape, having its inner end 2O enlarged toa size sufliciently to permit the head 15 to be 'passed therethrough andthe opening 21 in the link 17 through which the pin or bolt passes is ofa diameter to receive the bolt and is held thereon by a member 23 passedthrough the pin.

'mounted by inserting the hook 8 in the apertures 18, thus materiallyfacilitating the running of the wire and producing an economy in labor.

It Will'be readily apparent to those skilled in the art to which aninvention lof the character described appertains, that in addition totheeconomy in labor, I provide an appliance which is of extremely durableconstruction and capable ot being produced at a low cost.

What I claim as my invention is:v

An appliance of the character described,

comprising an attaching member, a hook end thereon, a pair of linkshaving registering apertures 1n their inner ends adapted to be engagedover the attaching member Lhook end, the outer ends of the links beingstruck outwardly and then parallel to provide a yoke frame, aninsulating spool adapted to be secured between the opposite ends of thelinks to receive a strain in a direction away from the attaching member,the outer ends or" said linkshaving apertures therein, a securing pinpassed through the apertures of the links andk through the spool, a headon one end of said pin preventing its movement through the spool in onedirection, and means securing the other end of the pin to one link toprevent longitudinal movement of the spool from the link, the apertureof the other link being provided with a keyhole slot having its narrowportion disposed toward the line of strain on the spool to preventdetachmentof the spool from between the links while a strain is applied,the link having the keyhole slot being readily detachable fromy the pinupon its disengagement from the attaching member and its movement in alongitudinal plane in the line of strain In testimony whereof I aflix mysignature.

ALWIN Gr. STEINMAYER-`

